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Nana76 [90]
3 years ago
5

What element forms an ion with an electronic configuration of [kr] and a –2 charge?

Chemistry
2 answers:
KonstantinChe [14]3 years ago
8 0
Must be Selenium (Se). It is two space away from Kr, which means that it needs two extra electron to be like a noble gas, Kr.
nekit [7.7K]3 years ago
6 0
Must be Selenium (Se). It is two space away from Kr, which means that it needs two extra electron to be like a noble gas, Kr.
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